On Mon, 26 Feb 2018 16:05:34 +0100, Freaky wrote: > > Hi there, > > we're trying to get sound working on a MacbookPro 13,3 (A1707). > > So far I've been unable to get the sound working. Did use the HDA analyzer > and flipped the out-dir, enable and data on all 8 GPIO's, but none of them > got the sound working on either the onboard speakers nor the jack output > for headphone. > > Is there anyone willing to help on this issue? Driver development is a bit > beyond my skills. I can provide hands, debug logs, etc. tho' :). > > Currently trying with a default Ubuntu 17.10.1 live USB, but a 4.15.3 > kernel didn't help either. > > Alsa-info has been uploaded to > http://www.alsa-project.org/db/?f=33cc432d3b648d1aa6adc997630817046656a086 > > The system was booted with an external USB-C dock from Dell, otherwise > there's no network and no regular (USB-A) ports available (booting from > stick) as the WiFi doesn't work and the device has only USB-C ports. The > card 0 is from the dock - it's not relevant (and working). > > Before alsa-info ran there was also a USB headphone plugged in, that was > card 1. Without those devices card 2 = 0 and 3 = 1 at boot. Issues are with > what's listed as card 2 currently, the HDA-Intel - HDA Intel PCH. > > Any help is greatly appreciated. > > Some people already have some trackers for the current state of the > devices. Not sure if they are of use, but might help: > https://github.com/Dunedan/mbp-2016-linux/ > https://gist.github.com/roadrunner2/1289542a748d9a104e7baec6a92f9cd7 The machine has a still unknown codec from Cirrus, possibly CS8409. And IIRC we had some thread for debugging a similar Mac in the past, but in vain. Usually Apple implements some non-standard things, e.g. controlling via VREF on an unused pin. So try to find out some information on other OS. Takashi _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
